Device for assembling the rollers of roller-bearings.



No. 700,|78. Patented May 20, I902.

E. F. CROWTI'IER. A DEVIGE FOR ASSEMBLING THE ROLLERS 0F ROLLERBEARINGS.

(Application filed Aug. 22, 1901) (No Model.) 2 Sheets-Sheet I.

Mania)? 3 I @WI (Wu/$1.

lo. 700,!78. f v Patented May 20, I902.

v E.-F. CROWTHER. DEVICE FOR ASSEIBLING THE ROLLERS 0F ROLLER BEARINGS.

(Application filed Aug. 22, 1901. (lo llodql.) 2 Shuts-Shoat 2.

,X/F'G:

7525mm ,6} wezziw,"

W ligarlmu flar xm f a I'm: uomm mi 00., moroumm WASHINGTON, a c.

UNITED STATES PAT NT (Drums.-

EDGAR F. CROWTHER, OF VICKSBURG, MISSISSIPPI.

DEVICE FOR ASSEMBLING THE ROLLERS OF ROLLER-BEARINGS.

SPECIFICATION forming part of Letters Patent No. 700,178, dated. May 20,1902.

Application filed August 22, 1901. Serial No. 72,915. (No model.)

To all whom, it may concern.-

Be it known that I, EDGAR F. OROWTHER, a citizen of the United States,residing at Vicksburg, in the county of Warren and State of Mississippi,have invented new and useful Improvements in Devices for Assembling theRollers of Roller-Bearings, of which the following is a specification.

The main object of my invention is to provide a device for assemblingthe rollers of roller-bearings which in operation shall enable therollers and wear-plates, if such be used, to be readily andexpeditiously placed about the axle and to be held in position while thebox-sections are secured in place about the rollers.

Other objects of the invention relate to details of construction and tocombinations and arrangements of parts, all as hereinafter described,and particularly pointed out in the claims.

In order that my invention may be fully understood, I have illustratedthe same in the accompanying drawings, in which-- Figure 1 is an endelevation of the device, showing by dotted lines one part of the frameswung away from the other. Fig. 2 is a side elevation of the device.Fig. 3 shows in enlarged detached views, partly in section and partly inelevation, portions of the two heads of the device. Fig. 4 is a sectionthrough an axle surrounded by rollers and showing the box-sections asabout to be applied thereto. Fig. 5 is a detail view of a modifiedconstruction of spring-pin. Fig. 6 is an end elevation on a reducedscale, showing a modification in the manner of connecting the two halvesof the device; and Fig. 7 is a view in elevation, partly broken away,showing the modified form of spring-pin combined with the apparatus.

Referring to the drawings, 1 2 indicate, respectively, the two circularheads of the device, eachof which is formed in two halves 3 4, providedwith a semicircular recess 5, so that when the two halves of eachheadare brought together they will provide a circular opening 6,-theopenings6 inthe two heads being in alinement and adapted to receive the axle 7,about which the rollers are to be arranged; The two halves of each headare 'with the pins 13.

hinged together at one side at corresponding points, as indicated at 8,and are provided with shoulders 8 to prevent them being swungunnecessarily far apart. when brought together, the two halves of eachhead are secured by means of a spring-catch 9.

The head 1 comprises a plate 10, having an annular flange 11, whichprojects some distance outward from and at right angles to said plate10. Said plate is provided with a series of apertures 12, arranged inone or more circular series around the plate 10, through each one ofwhich projects the end of a pointed pin 13, having a collar 14, adaptedto bear against the plate 10. Surrounding each of the pins 13 is acoiled spring 15, bearin g at one end against the collar 14. Projectingoutward from the edge of the annular flange 11 at four or more pointsare fixed pins 16, provided with screw-threaded portions 17 adjacent tothe flange.

The numeral 18 indicates a cover for the head 1, which is provided withapertures 19, corresponding to the apertures 12 of the plate 10. Saidplate is also providedwith suitable apertures to pass over the fixedpins 16 and is held against the edgeof the flanges 11 by means of nuts20, screwed on the" screwthreaded portions 17. Whenso positioned, therear ends of the pins 13 will project through the apertures 19 and thecover 18 will bear against the outer ends of the springs 15. For ease indescription I have referred to the plate 10 and cover 18; but it will ofcourse be understood that each of these parts consists of twosemicircular sections, forming, when corresponding sections areconnected together by the pins 16 and nuts 20, the two halves of thehead 1, as previously described. The two sections of the plate 10 arealso each provided with two or more screw-threaded apertures, in each ofwhich engages a screwthreaded portion of a relatively long thumbscrew21, passed through the;cover,18 and, in common with the pins 13, havinga pointed end. Each section of the head2 isprovided with a series offixed pins 22, which whenthe sections are brought tOgether, as shown bythe full lines in Fig. 1, are adapted to aline The parts of head 2 arealso provided with pointed thumb-screws 23,

corresponding to and adapted to aline with the similar screws 2]. Theheads 1 and 2 are connected together by means of side bars 24, one ofwhich is carried by each section of the head 1 and, extending inwardtoward the head 2, has its end passed through an opening in a boss 25,one of which is formed at the side of each half or section of the head 2and is adjustably held in said opening by means of a set-screw 26. Eachof the side bars 24 is provided with a shoulder 27 to limit the inwardmovement of the head 2, and the outer ends of said bars are providedwith stops, pins, or the like 28 to prevent the head 2 from sliding offof said bars.

The manner of using the device is as follows: By means of the set-screws26 the head 2 is first secured at the required distance from the head 1.The frame as a whole is 110w opened upon the hinges 8 and the rollers 29arranged in each section. This is done by placing one end of a rolleragainst the point of a pin 13 and pressing said pin inward against theresistance of its spring until the opposite end of the roller may bebrought to bear against the point of the corresponding pin 22, when thepressure of the spring 15 will hold the roller in place. Preferably,however, the ends of the rollers are provided with small recesses toreceive the pointed ends of the pins 13 and 22. In like manner otherrollers are secured in position to form in each section of the frame asemicircular series of rollers. As shown by Fig. 1, two circular seriesof rollers may be secured in the frame if a double set of rollers is tobe employed in the hearing, as shown in Fig. 1. The rollers having beenfixed on the pins in the frame, as described, it wear-plates, such as30, are to be used in the bearing such wear-plates in half or quartersections are secured about the rollers 29 by screwing the pointed endsof the thumb-screws 21 23 into engagement with the end edges of saidwear-plates. The frame is now placed over the axle 7 and its two partsbrought together, so that the opening 6 shall encircle the axle. Thespringcatches 9 will hold the two parts of the frame closed. The twobox-sections 31 are now placed in position to have their recessesencircle the wear-plates and rollers and are properly secured togetherin the ordinary manner. The wear-plates and rollers will now be held bythe boxes in their proper position and my device may be removed. This isdone by loosening the set-screws 26 and moving the head 2 in a directionaway from the head 1, so as to release the pressure of the springs 15,and then unfastening the catches 9, when the two parts of the frame maybe swung apart and removed from about the axle.

In Fig. 5 I have shown a modification in the character of thespring-pins. In this instance instead of having a separate pin andspring I provide a coiled spring 32 with a projecting point-ed portion33, which is non-circular in cross section and passes through acorrespondingly-shaped aperture 3th in the plate 10. The opposite endportion 35 of the spring is screw-threaded and is screwed into the cover18. The non-circular part 23 willprevent the spring from unscrewing. Theoperation will be apparent and need not be described further than tostate that the coil of the spring bearing against the plate 10 serves tolimit the outward movement of the pin 33 in the same manner as thecollar 14 of the previous construction. The fixed pins 16 serve as legs,upon which the device may be set when not in use.

In Fig. 6 I have shown the device as adapted to be inserted end wiseover the axle, the two halves of each head being slidably mounted withrelation to each other instead of having a hinge connection, as in theprevious construction. To this end one of the halves 3 of each head hasprojecting from its inner edge at opposite ends, respectively, two pins36. The other half 4 is suitably apertured. at opposite ends to slideover these pins and provided with spring-catches or other fasteningmeans 37 for holding the two halves together. After the half 4 has beenmounted on the pins 36 nuts 38 are screwed on the outer ends of saidpins to prevent the part 4: from sliding off of said pins. In opening orclosing the device the part 4 is moved from or toward the part 3,sliding over the pins 36, and in placing the rollers in position aroundthe axle the device is inserted endwise over the axle. In other respectsthe operation is the same as with the construction shown in Fig. 1.

Having thus fully described my invention, what I claim as new is 1. Adevice for the purpose described comprising two connected heads, each ofwhich is made in two separable parts having a central recess andprovided with inward-extending pins, and means for adjusting one of saidheads toward and from the other.

2. A device for the purpose described comprising two connected heads,each of which is made in two separable parts having a central recess andprovided with inward-extending pins, the pins on one head beingyielding.

3. A device for the purpose described comprising two connected heads,each of which is made in two separable parts having a central made intwo separable parts having a central recess and provided with means fordetach ably engaging a series of rollers.

6. A device for the purpose described comprising two connected heads,each of which is made in two recessed part-s having a hinge connectionand provided with means for detvachably engaging a series of rollers.

7. A device for the purpose described comprising two connected headseach of which is made in two separable parts having a central recess,one of said heads carrying a series of stationary pins and the other ofsaid heads comprising connected parallel plates having a series ofspring-controlled pins mounted therein. 7

8. A device for the purpose described comprising two connected headseach of which is made in two separable parts having a central recess,one of said heads carrying a series of stationary pins and pointedthumb-screws and the other of said heads comprising connected parallelplates having a series of spring-controlled pins and a series of pointedthumb-screws mounted therein. I

9. A device for the purpose described comprising two heads each of whichis made in two separable parts having a central recess, a series ofinward-extending pins carried by each of said heads, one of said headsbeing provided on opposite sides with apertures, bars connected at oneend to opposite sides of the other head and having their opposite endspassed through said apertures, and setscrews for engaging such ends,whereby one of said heads may be adjustedtoward and from the other.

10. Avdevice for the purpose described comprising two connected headseach of which is made in two separable parts, one of said heads carryinga series of stationary pins and the other of said heads comprising aflanged plate having screw-threaded pins extending out ward from itsflange, a cover-plate resting on said flange and apertured to pass oversaid pins, nuts on said pins for securing the coverplate in place, and aseries of spring-controlled pins mounted in said plates, the combinationoperating as set forth.

11. In a device for the purpose described, the combination with the head2 carrying the fixed pins, the head 1 comprising connected parallelplates having screw-threaded and non-circular apertures, respectively,and a coiled spring located between said plates and having at one end ascrew-threaded projec tion engaging in said screw-threaded aperture andat its opposite end a pointed noncircular projection extending throughsaid non-circular aperture, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit nesses.

A I EDGAR F. GROW THERa 'Witnesses:

GEO. W. REA, W. L. BOGAN.

